21163778872

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{2927}}^1\times {\mathrm{21019}}^1$

素因数の和:23995

約数の個数: 32

約数和(自身を含む): 40620729600

約数和(自身を除く): 19456950728

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 2927, 5854, 11708, 21019, 23416, 42038, 84076, 125861, 168152, 251722, 503444, 903817, 1006888, 1807634, 3615268, 7230536, 61522613, 123045226, 246090452, 492180904, 2645472359, 5290944718, 10581889436, 21163778872]

約数ペア:

[(1, 21163778872), (2, 10581889436), (4, 5290944718), (8, 2645472359), (43, 492180904), (86, 246090452), (172, 123045226), (344, 61522613), (2927, 7230536), (5854, 3615268), (11708, 1807634), (21019, 1006888), (23416, 903817), (42038, 503444), (84076, 251722), (125861, 168152)]